Can't Find IKEA Karlstad Upholstery

I chose the Kralstad sofa model from IKEA because it emphasized that the covers could be changed, which is a sustainable feature. But since the product has been taken off the market, I can't find new covers for the sofa. This situation is very disappointing, and it makes me feel like I can't trust the company's efforts to be green. I have looked everywhere for the covers, but I just can't find them. As a customer, I'd like IKEA to find a way to deal with this problem and help me out of my situation. It is important for companies to keep their sustainability promises and give their customers the tools they need to live up to their own sustainability values.